This muscle growth art is made as my part of an art trade between me and kdhrofj, provided with a short story below, featuring Duff and Serana.
As promised, Kenneth had traveled far into the outskirts of the city, or more specifically a humble village in the middle of the forest. It was not as big as a city, but its community was well-sized and sufficient. However, Kenneth himself often lived in the city more preferably and longer than in the village, but was always free to check by his friends residing there, including his girlfriend Serana the rabbit and his friend Duff the octopus. This time, he came to share his half-eaten jaggery to his friends, who were initially skeptical of what it actually contained, besides the fact that common people like them usually ate snacks like a jaggery. But once taken a bite, both Duff and Serana had turned into their bodybuilder form just like Kenneth, and they couldn't help but enjoy their new changes in them.